Guide for strip mills or the like



Jan. 2, 1940. E, BR N LE ET AL 2,185,657

GUIDE FOR STRIP MILLS OR THE LIKE Filed Feb. 24, 1938 Inventor By 2mm A itomeus Patented Jan. 2, 1940 PATENT OFFICE 2,185,657 GUIDE FOR. s'rnlr MILLS on rm: mm

Edward Brangle, Newburg Heights, and Vincent- Kolasinski, Cleveland, Ohio Application February 24, 1938, Serial No. 192,404

1 Claim.

Our invention relates to a mill bar guide for use in a steel strip mill, and particularly to a guide of this type having a wearing element involving a plurality of usable wearing surfaces which are presentable by adjustment of the wearing element, and an important object of my invention is to provide a guide of the character indicated which is considerably cheaper and lasts longer in service before requiring rem placement.

Other important objects of our invention will be apparent from a reading of the following description taken in connection with the drawin wherein for purposes of illustration we have shown a preferred embodiment of our invention.

In the drawing:

Figure 1 is a perspective view of the guide body constructed in accordance with the present invention.

Figure 2 is a perspective view of the replaceable wearing element.

Figure 3 is a transverse vertical sectional view of the invention.

While not necessarily confined to use and incorporation with a -inch four high cold strip mill, the invention may be well illustrated by description thereof in connection with such a strip mill, since the invention in use in such a strip mill may be used at least eight times under standard conditions by changing the wearing elements exposed surface, whereas under standard conditions the present guides can usually be used only four times at best and with considerable difficulty, whereas the present invention may be used at least eight times with the greatest of convenience. This fact represents a saving of at least percent as far as the use of material is concerned.

As a further illustration of the economical character of the present invention it is pointed out that for a machine of the type indicated the presently used guides involve a wearing element containing approximately 28.81 cubic inches of material, whereas the wearing element of the presently disclosed guide contains approximately 19.05 cubic inches, being a difference of 9.76 cubic inches so that his evident a 34 percent saving in the quantity of material required is produced. This 34 percent saving in material and the capability of the use of the guide eight times instead of four, represents a total approximate saving in the cost of guides for the type of machine indicated of from to 84 percent, particularly on a No. 30 4 high cold strip mill.

Referring in detail to the drawing, the numeral 5 generally designates the body of the strip guide which is preferably formed of adequately hard material such as steel in an elongated rectangular form provided in one side with a seat or channel 8 which is bounded at its ends by respective shoulders I and 8. The channel defines upper and lower walls 9 and III and a web or outer wall II. This outer wall is provided at suitable intervals with holes l2, I; to facilitate removal of the wearing element which is generally designated I4 and which is held in place in the channel by means of flat headed set openings IS in the top wall 9 of the guide body. The left hand end of the guide body has a solid portion [1 which is generally rectangular in cross section except for the cut-off corner l8 and the relatively small cut away portion l9 forming the inner face of the shoulder I. At the opposite end of the body 5 the upper and lower corners thereof are cut away at an angle as indicated by the numerals 20 and 2| and a cut away portion 22 bounds the inner face of the shoulder 8 as clearly illustrated in the drawing.

The wearing element generally designated I4 is of the same material as presently used, such as brass, and substantially perfectly square in cross section and of an exact length to fit in the channel 6 of the body-or guide box-5 without any tolerance or clearance, and to be locked in place in the said channel by proper adjustment of the set screws l6. By application of a suitable tool through the openings l2 and I3 in the guide box the wearing element l4 may be removed when the exposed surface has become worn down and the wearing element l4 may then be replaced in the channel with another one of its four surfaces exposed for further utilization of the guide. As indicated in Figure 3 of the drawing, an unworn surface of the wearing element M will project from the channel G flush with the inner face of the guide box.

As in the case of the wearing element ll, the channel 6 has no tolerance whatsoever in length, width, depth or thickness, and for a No. 11 mill, the guide box will be 33 inches wide and the widest stock run on the No. 11 mill is 27 inches wide. The wearing element M will be exactly 1 inches thick and 15 inches long on all four sides. It will be understood, of course, that different dimensions will be called for by the dimensions of the different machines with which the guide is to be used. It will also be underscrews l8 working in appropriate stood that guides for the opposite side of the guide box of the mill will simply have their arrangements exactly reversed with respect to those described herein, a pair of the guides usually being used to guide the opposite sides of the steel strip as it is fed through the guide box toward the roll in the cold roll strip mill.

In the arrangements presently in use, for the size of machine indicated, it is necessary to buy or pay for a greater number of pounds of brass and then have only one wearing surface whereas in accordance with the present invention, the wearing element requires an expenditure for a smaller number of pounds of brass and it at the same time provides four instead of one wearing surface.

Although we have shown and described herein a preferred embodiment of our invention, it is to be definitely understood that we do not desire to limit the application of the invention thereto, and any change or changes may be made in the materials and in the structure and arrangement of the parts, within the spirit of the invention and the scope of the subloined claim.

Having described the invention, claimed as new is:

A guide for a strip mill comprising an elongated body formed of one piece of material and what is having one side edge straight and formed with a channel which extends from one end of the body through the other end thereof. the end portions of the channel being of less depth than the major portion thereof to provide abutment shoulders at the ends of the said major portion, the said major portion being of uniform width and depth with the upper and lower walls flat and parallel to each other and the inner wall being flat and arranged at right angles to the upper and lower walls and all three walls being of the same width, a wear bar of square shape in cross section and of a width and thickness to snugly fit in the major portion of the channel with its ends contacting the abutment shoulders and three of its side walls contacting the three walls of the channel, the fourth side wall being flush with said straight edge of the body, the top of the body having countersunk holes screw pass ing therethrough and through the top wall of of the channel, screws fitting in the holes and engaging the bar for removably holding said bar in the channel and plain holes passing from the inner wall of the channel through the opposite wall of the body for the introduction of a memher to push the bar from the channel.

EDWARD BRANGLE. VINCENT KOLASINSKI. 

